A5020984158- Plant Micronutrient Interactions and Effects
- Aluminum toxicity and tolerance in plants and animals
- Silicon Effects in Agriculture
- Plant Stress Responses and Tolerance
- Plant Growth Enhancement Techniques
- Growth and nutrition in plants
- Radioactive element chemistry and processing
- Agricultural Science and Fertilization
- Analytical chemistry methods development
- Iron oxide chemistry and applications
- Cassava research and cyanide
- Geochemistry and Elemental Analysis
- Clay minerals and soil interactions
- Heavy metals in environment
- Seedling growth and survival studies
- Composting and Vermicomposting Techniques
- Lanthanide and Transition Metal Complexes
- Lignin and Wood Chemistry
- Banana Cultivation and Research
- Plant Physiology and Cultivation Studies
- Adsorption and biosorption for pollutant removal
- Marine and coastal plant biology
- Iron Metabolism and Disorders
- Layered Double Hydroxides Synthesis and Applications
- Electrochemical sensors and biosensors
Universidad Autónoma de Madrid
2013-2023
Universidad Politécnica de Madrid
2000-2004
Abstract The application of synthetic chelates is the most efficient remedy for correcting iron (Fe) chlorosis. However, are usually expensive and nondegradable products. Recently, new degradable have been proposed their use as Fe fertilizers. Also, complexes cheaper than derived from natural products also used to correct deficiencies. Fifteen products, including five different (Fe‐EDDS, Fe‐IDHA, three Fe‐EDTA formulations) ten (humates, lignosulfonates, amino acids, glycoproteins,...
A direct and simple fluorescent assay for the total polyphenol determination based on bioconjugate formed between laccase enzyme (TvL from Trametes versicolor) carbon nanodots (CD) is developed. One of most used reactions phenols enzymatic reaction their oxidation to quinones. In this work, CD has been biofunctionalized with TvL (TvL-CD) employed as a label follow reaction. The was characterized by spectroscopy microscopy. optimal TvL-CD ratio established. phenolic compound such gallic acid...
Abstract The feasibility of using pine bark and composted sewage sludge to produce alternative substrates was studied. tested were 1 2) fertilized with 4 g L−1 a slow-release NPK fertilizer (15 : 11 13) 3) substrate in which 15% (v/v) the replaced by sludge. Treatments abbreviated as PB, PB + N, CSS text. Pinus pinea Cupressus arizonica plants grown these for 2 years plant characteristics periodically along experiment. Additionally, nitrate heavy metal concentrations determined leachates...
BACKGROUND: Synthetic Fe chelates are commonly used to overcome deficiencies in crops, but most of them scarcely biodegradable. Iminodisuccinic acid (IDHA) is a biodegradable chelating agent that currently being evaluated as an alternative EDTA. In this work, the efficacy foliar application IDHA/Fe3+ soybean chlorotic plants under controlled conditions was studied, testing influence adjuvant and plant nutritional status. RESULTS: When applied with severe chlorosis sprays were sole source Fe,...
Iron chlorosis is a very common nutritional disorder in plants that can be treated using iron fertilizers. Synthetic chelates have been used to correct this problem, but nowadays environmental concerns enforced the search for new, more environmentally friendly ligands, such as lignosulfonates. In paper, Fe coordination environment and speciation lignosulfonate (LS) complexes prepared under different experimental conditions were studied by (57)Fe Mössbauer spectroscopy relation Fe-complexing...
The synthesis of commercial EDDHA produces o,o-EDDHA as the main reaction product, together with a mixture regioisomers (o,p-EDDHA and p,p-EDDHA) other unknown byproducts also able to complex Fe3+. These compounds have been obtained by direct synthesis, their structures determined ESI-MS analysis oligomeric EDDHA-like products, formed polysubstitution in phenolic rings. Short-term experiments show that iron complexes samples enriched these adequate stability solution, but significant amount...
Water-soluble humic substances (denoted by LN) extracted at alkaline pH from leonardite are proposed to be used as complexing agents overcome micronutrient deficiencies in plants such iron chlorosis. LN presents oxidized functional groups that can bind Fe(2+) and Fe(3+). The knowledge of the environment Fe Fe-LN complexes is a key point studies on their efficacy fertilizers. aim this work was study Fe(2+)/Fe(3+) species formed with (57)Fe Mössbauer spectroscopy under different experimental...
Silicon has not been cataloged as an essential element for higher plants. However, it shown beneficial effects on many crops, especially under abiotic and biotic stresses. fertilization was evaluated the first time plants exposed to fluctuations in Fe regime (Fe sufficiency followed by deficiency and, turn, resupply). Root foliar Si applications were compared using cucumber that hydroponically grown a growth chamber different nutritional statuses applied either roots or shoots. The SPAD...
The objective of this study was to evaluate the efficiency a zinc lignosulfonate (ZnLS) as Zn source for wheat and corn plants under hydroponic conditions. Zn-complexing capacity three commercial lignosulfonates (byproducts paper pulp industry) tested, LS-NH4, from spruce wood, selected. Its efficacy fertilizer assessed at different pH values (7.0 8.0) in comparison with chelate (ZnEDTA) an inorganic salt (ZnSO4). For 7.0, it concluded that fertilizers followed sequence Zn-EDTA > Zn-LS ≈...
The aim of this work was to evaluate the efficiency a NPK fertilizer (8:15:15) with Zn lignosulfonate (ZnLS) adhered as source for maize plants. This product compared in three experimental designs same ZnSO(4) and no adhered. first second assays were carried out growth chamber by using perlite calcareous soil substrate third experiment raised two fields. In general, experiments showed that plants treated + ZnLS presented highest dry weight concentrations shoots. Also at field experiments,...